Doesn't matter which way you make the rotorss turn, so long as you wind in the correct direction. And wrong is pretty obvious as the copter drives straight into the ground instead of climbing!
For 'normal' winding (clockwise) you want a rotor turning like a 'normal' prop like found on Wright Stuff planes for your free rotor on top. And of course the 'fixed rotor (attached to motor stick) is set up the opposite.
But a 'backwards' rotor on top and 'normal' fixed prop below just means you need to wind counterclockwise.
Now, this all switches if you put the free rotor on the bottom. A 'normal' pitched free rotor on the bottom and fixed on top means you need to wind butterfly.
If you get confused, pick a direction to wind, attach motor and let the free blade spin. You should feel air moving DOWN. Up is bad, wind the other way.
Probably clear as mud, let me know and I'll try to explain another way if needed.
BUTTERFLY come from? What the heck was I thinking about??? I mean its so obvious you need to wind moth... err... dragonfly... err...<SNIP>...you need to wind butterfly.<SNIP>
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